yii\imagine\Image - Yii2 类参考手册
Class yii\imagine\Image
| Inheritance | yii\imagine\Image » yii\imagine\BaseImage |
|---|---|
| Available since version | 2.0 |
Image implements most commonly used image manipulation functions using the Imagine library.
Example of use:
// generate a thumbnail image
Image::thumbnail('@webroot/img/test-image.jpg', 120, 120)
->save(Yii::getAlias('@runtime/thumb-test-image.jpg'), ['quality' => 50]);
Public Properties
隐藏继承的属性 Hide inherited properties
| 属性Property | 类型 Type | 简介 Description | 定义在 Defined By |
|---|---|---|---|
| $driver | array|string | The driver to use. | yii\imagine\BaseImage |
| $thumbnailBackgroundAlpha | string | Background alpha (transparency) to use when creating thumbnails in ImageInterface::THUMBNAIL_INSET
mode with both width and height specified. |
yii\imagine\BaseImage |
| $thumbnailBackgroundColor | string | Background color to use when creating thumbnails in ImageInterface::THUMBNAIL_INSET mode with
both width and height specified. |
yii\imagine\BaseImage |
Public Methods
隐藏继承的方法 Hide inherited methods
| 方法 Method | 简介 Description | 定义在 Defined By |
|---|---|---|
| autorotate() | Rotates an image automatically based on EXIF information. | yii\imagine\BaseImage |
| crop() | Crops an image. | yii\imagine\BaseImage |
| frame() | Adds a frame around of the image. Please note that the image size will increase by $margin x 2. |
yii\imagine\BaseImage |
| getImagine() | Returns the Imagine object that supports various image manipulations. |
yii\imagine\BaseImage |
| resize() | Resizes an image. | yii\imagine\BaseImage |
| setImagine() | yii\imagine\BaseImage | |
| text() | Draws a text string on an existing image. | yii\imagine\BaseImage |
| thumbnail() | Creates a thumbnail image. | yii\imagine\BaseImage |
| watermark() | Adds a watermark to an existing image. | yii\imagine\BaseImage |
Protected Methods
隐藏继承的方法 Hide inherited methods
| 方法 Method | 简介 Description | 定义在 Defined By |
|---|---|---|
| createImagine() | Creates an Imagine object based on the specified $driver. |
yii\imagine\BaseImage |
| ensureImageInterfaceInstance() | Takes either file path or ImageInterface. In case of file path, creates an instance of ImageInterface from it. | yii\imagine\BaseImage |
| getBox() | Returns box for an image to be created. | yii\imagine\BaseImage |
| getThumbnailBox() | Returns box for a thumbnail to be created. If one of the dimensions is set to null, another one is calculated
automatically based on width to height ratio of original image box. |
yii\imagine\BaseImage |
| isUpscaling() | Checks if upscaling is going to happen | yii\imagine\BaseImage |
常量 Constants
隐藏继承的常量 Hide inherited constants
| 常量 Constant | 值 Value | 简介 Description | 定义在 Defined By |
|---|---|---|---|
| DRIVER_GD2 | 'gd2' | GD2 driver definition for Imagine implementation using the GD library. | yii\imagine\BaseImage |
| DRIVER_GMAGICK | 'gmagick' | Gmagick driver definition. | yii\imagine\BaseImage |
| DRIVER_IMAGICK | 'imagick' | Imagick driver definition. | yii\imagine\BaseImage |